st: Why no predicted probs but exponentiated linear prediction for -adjust- after -xtgee- or -xtmelogit-?

st: Why no predicted probs but exponentiated linear prediction for -adjust- after -xtgee- or -xtmelogit-?

Date

Wed, 17 Dec 2008 22:05:05 -0500

Experimental psych generates reams of repeated measures binomial data (most bad analyzed but that's another story).
Unsurprisingly I was running -xtmelogit- and -xtgee- today to analyze some repeated measures binomial data and was reminded of one of the oddities of the otherwise most excellent -adjust-, namely the fact that it will happily generate exponentiated linear predictions but not predicted probabilities. This seems odd because the predicted probs are just
PredProb = ExpLinPred/(1 + ExpLinPred)
and we don't much care about ExpLinPreds but deeply care about PredProbs.
Yes, I can drive -pred-, etc., but getting colleagues and students to drive Stata on their own can be task enough. -adjust- is a great selling point and students like it... except for this.
Am I missing something?
JV
(who wants to drag experimental psychologists away from the hell that is SPSS, and tilt at other windmills while he's at it)
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